manuzhang opened a new issue, #2914: URL: https://github.com/apache/datafusion-comet/issues/2914
### Describe the bug When implementing [fix: array to array cast](https://github.com/apache/datafusion-comet/pull/2897), the test of casting `ArrayType(DecimalType(10,2))` to `ArrayType(ShortType)` failed with following error, where comet truncates `-96833550.07` to `-96833550.7`. ``` "...The value -96833550.[]7BD of the type "DEC..." did not equal "...The value -96833550.[0]7BD of the type "DEC..." (CometCastSuite.scala:1328) ``` It looks to be related to `cast_decimal_to_int16_down` https://github.com/apache/datafusion-comet/blob/5ec12d4024e78faa97834f88ab606ecd3d0db5fb/native/spark-expr/src/conversion_funcs/cast.rs#L674-L696 It can be proven by printing the original and truncated values. ``` casting value: -9683355007, truncated: -96833550, decimal: 7, is_overflow: false ``` ### Steps to reproduce _No response_ ### Expected behavior _No response_ ### Additional context _No response_ -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
